Rolling bed



Feb. 14, 192s. 1,659,042 H. H. MOTSCHMAN ET Al.

ROLLING BED Filed A112147, 1925 2 Sheets-Sheet 1 Feb.

H. H. MOTSCHMAN ET Al.

ROLLING BED Filed Aug. 17, 1925 Patented Feb. 14,1928.Y

UNIT-ED STATES PATENT1o1=FICie:.QXl

HENRY II.`1vioTsCH1viAN ANDGEORGE a." POWERS, or CHICAGO, ILLINOIS, AssIGNoEsy To UNION BED AND SPEINGKOOMPANY, or CHICAGO, ILLINoIsn CORPORATION v oEILLINoIs g A f ROLLING BED.

'Appncaioiinied August i7, 1925. serial No; 56,562.

Oui' invention pertains tol `movable beds ,and relates more particularly to those hav-y ing' roller or wheel-equipped ybases adapted to berea-dily rolled to different positions,

the bedstead itself being movably mounted.

on such base,-whereby it may be shifted or rocked to operative or inoperative positions.

' One of the main or principal features of Y the present invention resides in an automatically-actuated extension for such base or support whereby the latter is enlarged as the bedstead lis lowered or swung down to' horizontal position` hence eliminating any danger of the base'being inadequate in size' to properly support the structurefin all of its various positions-and inl f act the novel improvement ,permits themakingof a folding or hinged bed of this type which occupies less floorspacethannsualwheii the bed proper is in uprightposition. i

In order to enable' thoseskilled in this art tok fully understand this invention rfroiri structural and functional standpoints, in the accompanying drawings, forming a part of this specification, wehave illustratedk adesirable and preferred embodiment of the inventionv andfor simplicity we have designated like parts. With the same reference characters throughout the yseveral views. In these drawings:V i

Figure 1 is a fragmentary vertical section on line 1'-1 of Figure 3, showingv the bedstead in horizontal Operativeposition andA indicating the base as enlarged or'extended; Figure 2 is a fragmentary vertical section on line 2 2 of Figure 1; n

Figure 3 is a horizontal sectionon line 3-3 of Figure 1; and Y Figure 4t isa section similar to that of Figure 1 with the bedstead in upright position and withthe base frame contracted.

Referring to thesek drawings, it will be seen that kthe new` and improved structure` comprises a main base frame` of general rec- V tangular' form with rounded extensions at ithe two front corners. y Y This frame 'inclu-des a 'channel bar having its flanges ,disposed` outwardly and bent-tor provide a `back section-.11 Y(Figure 3) `and two, parallel', 'end sections v12, 12 which at their front ends are curved at 13, 13 to form lsubstantially semi-circular projections; -`Anther'front channel bar 1li is joined ror connectedto the endsf12, 12 and tothe others-k` i screws orfother convenient means 16T being`A i kemployed to hold such cushioning means betweenfthe top yand bottom marginal flanges of thebent'bar.Y i y n v Twofconnecting inetalstraps 17, 17 with terminal parts to the `:inner faces of the front and rear bars 14C andi11 respectively by suit. able' rivets21. y, y y uch frame is lmountedin any approved inannerfo-n four casterL carrying-wheels 22, 23, 24C and 25 arranged Vat the four corners thereof.

A pairiof spaced tubes 26, .26" are disposed below the front and rear bars of the "upturned ends 18,. 19 are @fastened by such. d

frame and secured thereto by pocketemembers 27, 27'surrounding the front ends of Y ythe two tubes vand fastened to the under side vof the front bar 14, the rear ends of the tubesy being cutaway yand flattened to prof be secured by rivets to the back bar 11.rk l,

These tubes telescopically accommodate within them-a corresponding'pair ofyextension rods 31, 31 adapted torbe projected f0rvide Vupstanding ears 28 by which they may f i wardly, such rods 'at their front ends beingV fitted ywith :socket-pieces 32,32 carrying smaller caster-wheels 33, 33 and supplied with upright lugs 34 riveted tothe web of a channel cross-bar 35 equipped with a cushion facing 36 on its front face between its flanges.

A link'37, having a split or bifurcated l front section 38,y 38 is hinged at 39, 39 to members 111, 111 riveted to the inner 4face of the front cross-bar'35, its back end being hinged at42 to the front end. of a bent s lever 43 of theV fornishown in Figures 1 and 4t fulcrunied at ietona bracket 45 Ymounted on an intermediate cross-bar 46`- of angle cross-section. y

rLever i3 has an angular extension 47 carrying an anti-friction roller 48 at its end, andk suchjextension has llateral projections 49, 49 connected by a. pair of coiled springs 51,51 tothe horizontal yflange of an upper,

through end helical springs 64,-, the element 61: and the angle-bar (52 having two'brackets o5` GG thereon connected to the corresliondingl members at the opposite end lof the "'e'dstead bv the usi'ial tubular side-rails (5T and also directly connected to the member (Slat G8, tothe angle-'bar 62 at 69 and to the shorter angle-bar 52at 7l. y

Each ot these castings 6 5 has an arm1 hingedly mounted on the upper end ot a link' 74 rocl-:ingly supported at its lower end at 'T5 on the corresponding castlng 55,

" each such member ('35 or 66 having also a isv secondV arm 'T3 supplied with a transversely projecting,` lug` 77 designed when the bedstead frame is in openor horizontal position to reside in a `slight depression or pocket 78 in the upper portion of the correlated or complci'i'iental casting 55, as shown in Figure l. p

Angle-bar 62 at its middle carries a bentbar camv or leveiiactuator 79 in the same vertical plane as and adapted to operate the arm et? through its terminal roller 48.

Then the hinged or rockable bedstead is in nl'iright or inactive position as depicted in Figure et, the various elements occupy the relations shown and the base frame is iullv contracted and occupies but relatively small tloor space.

As the 'bedstead is swung down to active position, the several springs 53 becomeelon- @rated and strained and act to counterweight 'thcbedsteach at least in part.

During' such descent of the bedstead or frame." thelinks T-'lswing forwardly and ultin'iatcly the lugs T? enter the shallow wickets or recesses TS, whereby that part ot the hcdsload shown in the drawings etfectively and efliciently supgorted` the portion ot the bedstead not illustrated being supported by legs in the usual manner.

The upward travel oit' the angle-bar 52 is transmitted through the springs 51 to the lever 43 and the latter is rocked down autoreeaoe Vfhen the bedstead is rocked upwardly, the lugs T7 leave their sockets and the supporting,` links Tl swing rearwardly.

The base trame, however, remainsexpandcd or extended until the cam member or actuator 79 engages the roller 4S, whereupon` duri ng the continue-l upward turning ol the' liedsteatl, the lever i3 is positively elevated progressively andA the base frame is correspondingly contracted by the telescoping` action hereinbefore referred to.

Hence the base expansion begins' practically as soon as the dou-inward rocking action of the bedstead is initiated and is completed well before the downward swingingr is Vconsummated.

On the other hand, liowever,`the base remains fully brlpadenedV or enlarged untilthe bedstead has been swung up' about one-halt of its travel, its contraction or' diminution of size gradually occurring during the remainder o'l the elevating` movement of' the hcdstead. Y

From an uiulerstandingl of this present preferred construction-and its mode of operation` the manner of 'attaining the several advantageous objects will be quite apparent but it is't'oV be ren'iembered that the invention is not* limited orrestricted to the precise Vand exact details of construction since these may be modified within comparatively wide limits and still'fall within the purview olf the invention as defined by the appended canns. j

We claim: i

Vl.v In a folding-bed structure, the combination of a main base-frame, a supplemental hase-frame slfidably mounted 0n said main base-'frame and 4adapted to enlarge and contract the base-frameas'a whole, a hedlos frame rockingly mounted on said main-frame,

a link connected to the front of said supplemental hase-frame, a lever `fu'lcrulned on said-main base-trame and connected to said link. spring means connected to Said Vlever and bed-frame, and cam means between said hed-frame and ever, whereby when the bedtrame is rocked down to horizontal position it tensions said spring means to project the supplemental base-tramo fully forwardly during` the initial downward movement ot the bed-frame, said cam means retracting said supplemental base-traine during the latter portion only of the upward movement of the bed-frame.

2. In a folding-bed structure, the combination of a main base-frame, a supplemental base-trame slidably mountedon said main base-trame and adapted to enlarge and .contract the base-frame as a whole, a` bed-frame, links' rockingly supporting said bed-frame on said main base-frame, recessed standards, projectionsv on said bed-trame adaptedl torest in said'reeesses when ythe bed-framefisldown in horizontal operative position, a link conneeted to the front lof said supplemental hase-"frame, a lever ulorurned on said main base-frame and Connected to said link, spring means connectedV to said leverV and bedframe, andcam Ameans between said hed#V during thefntialdownward movement of 10 the bedframe, said cam mea-ns, retracting said supplemental base-frame during the latter portion only of the upward movement of said bed-frame.

In witness whereof we have our hands. Y

' HENRY I-I. MOTSCHMAN.

GEORGE G. POWERS.

hereunto -set 15 

